I can't wait for the first lawsuit:
"I threw my controller and hit my wife in the head so Nintendo should give me eleventy billion dollars"
Every game starts with a big screen saying make sure its strapped on and no ones around you and you are interrupted quite a bit on loading screens if playing for a while to go take a break. Any strap faults should obviously be sorted but if someone has played for 4 hours and the controller flies 3 inches out of their sweaty hands and breaks a glass then its their own fault.
Edit:
Seeing the furore over Sonys viral marketing campaign for the PSP someone pointed out this Wii ad as an actual attempt to sell a console
http://www.youtube.com/watch?v=54Ky2Pg4w-Y